86317073 has 4 divisors (see below), whose sum is σ = 86341668. Its totient is φ = 86292480.

The previous prime is 86317069. The next prime is 86317081. The reversal of 86317073 is 37071368.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65092624 + 21224449 = 8068^2 + 4607^2 .

It is a cyclic number.

It is not a de Polignac number, because 86317073 - 2² = 86317069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86317573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5936 + ... + 14417.

It is an arithmetic number, because the mean of its divisors is an integer number (21585417).

Almost surely, 2^86317073 is an apocalyptic number.

It is an amenable number.

86317073 is a deficient number, since it is larger than the sum of its proper divisors (24595).

86317073 is a wasteful number, since it uses less digits than its factorization.

86317073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24594.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 86317073 is about 9290.6981976599. The cubic root of 86317073 is about 441.9422967470.

The spelling of 86317073 in words is "eighty-six million, three hundred seventeen thousand, seventy-three".